KoamTac KDC200 KDC250, Руководство по программированию

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Where: Barcode data is the actual read barcode data
CR is 0x0d(‘\r’)
LF is 0x0a(‘\n’)
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PACKET DATA
S N C Y D T K
Where:
S : Start byte 0x03(1 byte)
N : Total number of bytes to be sent(3 bytes)
C : Total number of each barcode data(1 byte)
Y : Type of each barcode(1 byte)
D : Actual barcode data of each barcode(variable size)
T : Timestamp of each barcode(4 bytes)
K : Check sum byte(1 byte). All sum except S should be 0.
‘Z’ command
Parameters: Security level (valid values: 1 to 5)
Format: “Z x #” where x is the value of parameter in hex.
Output: ‘!’ – invalid parameter.
‘@’ – all other times.
Purpose: Set the security level.
‘z’ command
Parameters: None
Format: ‘z’
Output: ‘ xxxxxxxx @’ where xxxxxxxx is the current security level and @ means the end of data
Purpose: Read the current security level value